What a strange quote...
Is it Frodo to Sam?

Merry to Pippin?

Nilturiel has it. :)

10 day rule.
 

what lies or threats

Faramir in the EE.

Evisse has it. I was afraid that would be too easy. :)

Thankee!

"If there is need..."

Faramir to Denethor in the EE. :)

Yep!

That is no

"That is no Orc horn"
Legolas at Helm's Deep.

Right! :)

thanks:)
 

"he's alive"

Is it Eomer when he finds Theodred?

Correct, your turn! :)

10 day rule.
 

I've always been

Nim :)

"i've always been taller than you"? Pippin to Merry in Fangorn?

That's the one. Your go! :D

Is anyone alive out there? Mango?

bump
 

*bump bump bump!*

Oops! sorry, I hadn't realised I'd posted recently in here! sorry!

"Its a shame, really"

Sam to Frodo about the Elven rope.

Correct :)

thanks
 

"leaves more time"

"Good speech, nice and short"
"Leaves more time for drinking!"

Boromir to Faramir in the flashback to Osgiliath.

Correct! (one of my favourite non original dialogue from TTT :D ).
Your go again, Mango! :)

I think its a nice moment between Boromir and Faramir :)

"...or shall i..."

Hi!
Is it Legolas to Gimli at Helm's Deep:

Would you like me to describe it to you? Or shall I fetch you a box? :)

correct :)

Okay

"...the answer to all the riddles..."

Faramir to Sam and Frodo in Ithilien?

Correct. Have a bannana! :D

AHHHHH!
"...is where I will...

Is it Treebeard to Merry and Pippin in Fangorn?

Yup

Nice one

"You want some?..."

An Uruk-hai (I can't recall if it was a specific one) to Pippin when speaking of the "medicine." :)

Spot on :)

"Leave him alone!"

Pretty easy. :)

Is it Pippin to the uruk hai when they are trying to give Merry medicine?